diff --git a/requirements.txt b/requirements.txt
index 56ebecf..772f375 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ numpy==1.14.0
 regex==2018.02.08
 pyyaml==3.12
 opencv-python==3.4.2.17
-opencv-contrib-python==3.4.2.17
+opencv-contrib-python==3.4.7.28